Half to miller brothers



(No Model.) 2 Sheets-Sheet 1. D. L. DWINNELL. WATER CLOSET.

No. 415,961. Patented Nov. 26, 1889.

llllIllillllllb.

Wz'in esses N. PETERS. mwuuw her (No Model.) 7 2 Sheets-Sheet 2. D. L. DWINNELL.

WATER CLOSET. No. 415,961. Patented Nov. 26, 1889 hwawm Inmnlim UNITED STATES PATENT OFFICE.

DAVID L. DIVINNELL, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR OF ONE- HALF TO MILLER BROTHERS & MITCHELL, OF SAME PLACE.

WATER-CLOSET.

SPECIFICATION forming part of Letters Patent No. 415,961, dated November 26, 1889.

Application filed August 23, 1889. Serial No. 321,790. (No model.)

1'0 aZZ whom it may concern: Letter A is a siphon, which may be ar- Be it known that I, DAVID LANCASTER ranged in any ordinary manner to draw off DWINNELL, a citizen of the United States of the water fromatankBbefore said tank is full America, residing at the city of Montreal, in to overflowing. The long leg 1 of the siphon the District of Montreal and Province of is extended down and connected with the 5 5 Quebec, Canada, have invented new and usebowl or hopper C, while the short leg 2 is arful Improvements in VVatenClosets; and I ranged to draw off the water in the said tank do hereby declare that the following is afull, to a level near the bottom of the tank.

clear, and exact description of the same. D is the obstructer, andE is the exhauster.

This invention relates to improvements in As shown in Figs. 2 and 3, the obstructer that part of a water-closet by which the consists of a small vessel made in two parts, bowl or hopper of the closet is flushed of which 3 is the body, and l the cap or cover. with water; and the object of my invention These are made integral with the siphon-leg is to construct this part of the apparatus in 1, and are screwed together, as shown, being 15 a more simple, cheap, and durable manner. fitted to form an air-tight joint between The particular construction and combinathem. Within the body 3, by n1eans..of protions of elements which form the present injections 5, which may be made integral with vention will be hereinafter set forth and the body, is held a cup 6. This is soldered claimed. I to the ends of the projections 5, or, if desired,

20 In the drawings hereunto annexed similar the projections 5 may be formed on the cup letters of reference and numerals indicate 6 and soldered to the body 3, or the cup may like parts. be secured in any other ordinary manner in Figure l is a front elevation, part in secthe relative position shown. The cup will be tion, of an apparatus embodying my invenof such outer diameter that the spaces 7 about 25 tion. Fig. 2 is a vertical central section of it will be in area somewhat greater than the the obstructer D. Fig. 3 is a plan of the ob area of the leg 1. In the cup is placed a holstructer D as viewed with the caperemoved. low rubber or other light ball 8, which floats Fig. 4 shows a first modification of the siphon in the water in the cup and forms an air-tight A. Fig. 5 is a further modification of the sijoint with the leg 1 above it.

0 phon A. Fig. 6 shows a modification of the When the water comes down the leg 1 to obstructer D. Fig. 7 is a further modificaflush the bowl or hopper C, the ball 8 is driven tion of the obstructer. Figs. 8, 9, and 10 show on one side or downward in the cup, and the modifications of the exhauster E. water passes in the manner indicated by the For the sake of clearness and brevity and arrows in Fig. 2.

3 5 to avoid multiplicity of terms I shall in this The obstructer D may, like the siphon, be 8 specification establish the following meanmade in a great variety of ways. As shown ings to the following words: in Fig. 6 it consists of a trap 9, which is pro- By the word siphon will be understood vided with an air-pipe a, to prevent the whole any known construction which will from of the water from being siphoned out of the 40 its nature fulfill the office of a siphon. trap, and in this case, for the reasons herein- By the word obstructer will be underafter mentioned, I provide a small perforastood any valve, trap, or other ordinary tion 10 in the short leg 2 of the siphon. known meansby which theatmosphere is pre- In Fig. 7 the ohstructer is formed on the vented from returning to a space from which extreme end of the leg 1, where it enters into 45 it has been more or less exhausted by any the flange or neck 11 of the bowl C. In this suitable means. case, as shown, it consists of a flap-valve 12,

By the word exhauster will be underhinged at 13. stood any known contrivance arranged so The exhauster D, as shown in Figs. 1 and that an amount of rarefaction of the atmos- 6, consists of an ordinary hollow compressible 5o phere in a given space may be produced. rubber bulb 15such as are used on injectors I00 and syringes-attached 011 a pipe 14, which forms a passage from the bore of the leg 1 to the bulb 15.

As shown in Fig. 8, the exhauster is made substantially like a pair of bellows. Here 16 are two heads, one of which is attached on the end of the pipe 14'. 17 is an air-tight cylinder of flexible material attached air-tight on each head. 18 is a spiral spring arranged so that when the exhauster has been compressed to bring the heads 16 nearer together it will cause the exhauster to expand again of itself to the fully-extended state shown in Fig. 8.

In Fig. 9 the exhauster is formed of a cylinder 19, to which the pipe 14 is connected. Over the front end of the cylinder is attached a rubber diaphragm. By pushing the center part of this diaphragm into the cylinder, as indicated by the dotted lines in the figure, it will return of itself to the position delineated by solid lines.

I11 Fig. 10 a cylinder 21 is attached on the end of the pipe 14:. This is provided with a piston 22, which is pressed and moved in the direct-ion of the arrow by pressing on the knob 23, and is caused to return to the front end of the cylinder or move in the opposite direction to the arrow by the spiral spring 24.

The tank B is filled with water to an equal standard or constant normal level after each time the siphon A has operated by an ordinary ball-cock F, or any other ordinary contrivance as heretofore in use, and this will be so arranged that the water will not rise in the tank B to such a level as to cause the siphon to act; but the nearer the ball-cock is arranged to allow the tank to fill to the level at which the siphon will act the more easily will the essary to press down the ball of the ballcock F by hand and allow the tank B to fill until the siphon A acts by the increased height of level of water. hen the water has once passed down the leg 1, the cup 6 will remain full of water and the ball 8 will float up and vclose the end 25 of the leg 1 above it. If the exhauster is now compressed, the air contained in it will rush into the leg 1 and the ball 8 (if arranged as shown in Fig. 1, or flapvalve 12, if arranged as shown in Fig. '7) will yield and allow the air to pass out. the exhauster E again expands, the ball 8 or flap-valve 12, as the case may be, closes and prevents the air from returning. This causes a rarefaction of the air contained within that part of the siphon which lies between the obstructer D and the level of the water in the siphon-leg 2. This rarefaction causes the siphon to act at any time that the tank B is hauster is compressed and expanded.

In the modification shown in Fig. 6, as before remarked, the obstructer is formed of an ordinary trap 9, and when the exhauster is j operated it would were no provision made only cause the water in the short leg 2 to be pressed down and the water in the trap 9 to be pressed up into the leg 30, and when the exhauster had again expanded these would return to the position from which they had been pressed probably without causing the siphon to operate, unless the exhauster were made of considerably-increased capacity. To obviate this the small perforation 10 is provided at a little distance below the standard level of the water in the tank B, so that as soon as the water falls in the leg 2 (by reason of the compression of the exhauster) to the perforation 10 the air will escape by it, and when the exhauster again expands it will produce the necessary exhaust-ion to cause the siphon A to act. Now some discretion is necessary with regard to the size of the perforation 10, as if made too large it will destroy the 7 action of the siphon A, and if made too small the air will take too long to escape. There fore without confining my invention in any 1 way I would say that I have found by practical operation that where the siphon A is formed of one and one-fourth inch (inner diameter) pipe a perforation of from one thirtysecond to one-sixteenth of an inch is suitable for the purpose.

Almost endlessmodifications of siphons,

exhausters, and obstructers could be arranged;

to operate substantially in the manner above described without departing from the gist of my invention, which modifications it would be useless to further describe. Therefore I say thatIdo not confine my invention specifically to the above-set-forth particulars of construction.

What I claim is as follows: 1. The combination, in an apparatus for flushing the bowls and hoppers, &c., of closets with water, of the tank B, supplied with a 1 standard level of water, as described, siphon A, provided with cap 4, and body 3, having cup 6 attached within it, leaving a space for ,the passage of the water between the said body and cup, ball 8, arranged to float in the cup and form a valve to the end of the up- ;per portion of the siphon-leg 1, with an exhauster arranged to cause an exhaustion with- I in the siphon, the whole substantially as described and shown.

\Vhen j' cap 4, and body 3, having cup 6 inclosed there- ;in, ball 8, arranged to float in said cup and adapted to form'a valve to the lower end of :the upper part of the siphons leg 1,the said tsiphon being further provided with pipe 14, Zand bulb 15, adapted to form an exhaustion in the siphon, the whole substantially as gshown and described.

full of water to the proper level and the ex- 2. The combination, with a siphon,- of the DAVID L. DWINNELE.

Witnesses:

CHARLES G. O. SIMPsoN, W F. LIGHTHALL. 

